I would not think of quarreling with your interpretation nor offering any other, as I have found it always the best policy to allow the film to speak for itself.
I don`t think that writers or painters or filmmakers function because they have something they particularly want to say. They have something that they feel. And they like the art form; they like words, or the smell of paint, or celluloid and photographic ...
Perhaps it sounds ridiculous, but the best thing that young filmmakers should do is to get hold of a camera and some film and make a movie of any kind at all.